Alloy Belt Drive Kit – Triumph Pre Unit 500/650

Part Number : BELT03A Categories: , ,
(5 customer reviews)

£ 280.00 +VAT if applicable

Alloy Belt Drive Kit for Triumph Pre-Unit Swinging Arm Models

Only 1 left in stock

4.75 out of 5
Part Number : BELT03A Categories: , ,

Alloy Belt Drive Kit complete


Suitable for Triumph Pre Unit Swinging Arm Models 500cc & 650cc circa 1955-62

  • Triumph TR6 Trophy
  • Triumph T120 Bonneville
  • Triumph 5T Speed Twin
  • Triumph 6T Thunderbird
  • Triumph TR5 Trophy
  • Triumph T100 Tiger (up to 1959)
  • Triumph T110 Tiger


All other parts can be used from your exisitng clutch without modification. Please note, this belt drive kit runs with the original type alternator setup. if you have replaced this with the later encapsulated version this belt drive kit will not fit.

Hard anodized alloy clutch basket with belt which can run wet or dry

Can Run Dry for racing use, but are not affected by the weather.

These belts are lighter, more efficient and better wearing than steel chains.

Standard Warranty 12 Months. Note, this does not cover racing use.

Components Made in England, Belts Made in Europe

Fitting Notes

For fitting, the alternator mounting ring will need spacing 5/16" (8mm) - Spacers not supplied

If fitting a primary cover (not advised with a belt drive kit) then you will need to purchase a 1/4" chaincase spacer from Triumph Cafe Racer Parts (Steve Blackwell)

5 reviews for Alloy Belt Drive Kit – Triumph Pre Unit 500/650

  1. Jean-Marie C. (verified owner)

    I just installed the belt drive kit I received from Burton Bike bits. It fitted perfectly in place of the old primary chain and sprokets. I would have just appreciated to have a mounting drawing as the front pulley can be installed in 2 ways and I selected the wrong way first. Fortunately , the kit is easy to install and the old parts accomodate well with the new ones.

  2. marc s. (verified owner)

    Nice parts quite running after I clearance primary cover thank you could of used set up guuide

  3. HELEN S. (verified owner)

    Have not fitted it yet but will send you pics when I do . The quality looks really good and looking forward to trying it out . I am building a bobber using a uncle bunt hard tail frame t1oo all alloy engine sloping forward by about 30degrees .kind regards trevor

  4. Markus B. (verified owner)


  5. Guest (verified owner)

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